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Search: Posts Made By: jakestew
Showing results 1 to 25 of 145
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Forum: Engine Conversions
03-21-2013, 04:28 PM
Replies: 11
Views: 1,349
Posted By jakestew

RE: Conversion parts

Why are carbs so expensive? Most that I have seen cost almost as much as an entire weed wacker. Somebody should be importing these things and selling them at standard markups.
Forum: Engine Conversions
12-13-2012, 10:44 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

This isn't an error. The pullups should be enabled in OPTION_REG. Only the hall sensor pullup is actually turned on.

If you're getting negative values in the table settings send me a copy so I...
Forum: Engine Conversions
12-09-2012, 01:29 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

http://www.electrofunnel.com/CDI-2012/CDI-2012_v1.0.zip
and
http://www.electrofunnel.com/CDI-2012/CDI-2012_v1.0_B.xlsm
are the links to the v1.0 and v1.0B files.


Part of this post has been...
Forum: Engine Conversions
12-08-2012, 07:48 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Website had a bad link. Sorry everybody!

I fixed the link so that the new "B" board version will download right. Been busy with finals so I haven't had much free time.


Post edited by...
Forum: Engine Conversions
12-02-2012, 01:15 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

I just lost a big post too! Again! My fault *again* for not copying it before posting! Every time I do this I try to copy the post right after hitting submit, before it goes to the error message,...
Forum: Engine Conversions
12-02-2012, 04:24 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

> I can sent you a board but it takes 2 or 3 weeks befor you get the board.

I understand. I'm sure John will send me a board. I just want to make people understand that I can't actually test...
Forum: Engine Conversions
12-02-2012, 04:14 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

****** GP 543210 *******/
****** Pin 234567 *******/
TRISA = 0b111100; // 1=Input, 0=Output,
WPUA = 0b110101; // Internal pull-ups on GP5+4+2+0

Right, to...
Forum: Engine Conversions
12-02-2012, 03:50 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Hopefully I can remember everything to reply to...

The MCLR pin is used as input. It should not reset the pic. (This should be disabled by the __config line I use)

Disabling the switches...
Forum: Engine Conversions
12-01-2012, 02:48 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

To make the current code work with this new timer board, just delete the first line of code in the main loop which calls CheckPins(). It reads "CheckPins();" followed by the comment. This will...
Forum: Engine Conversions
11-30-2012, 03:44 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Right now I'm sitting here looking at the one open-hardware board design I have on my bench. People can demand all they want, but AFAIK right now there is only one board design that is actually...
Forum: Engine Conversions
11-28-2012, 03:53 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

I can do some more work on the code to make the various configurations easier to change for different boards. Putting in lots of defines will make it easier to change a few settings at the top, but...
Forum: Engine Conversions
11-26-2012, 09:40 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Yep, I remember you coming up with some good stuff. I actually had bookmarked the site I linked to back when we were discussing things. I was in a hurry, but wanted to post a few things before...
Forum: Engine Conversions
11-25-2012, 03:23 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Now that I think about it more, I favor design B for the switch setup.

A couple changes will make this timer board better suited for future features though. Here are some changes I'd like to...
Forum: Engine Conversions
11-24-2012, 10:50 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Rob makes a good point... if low = run then if the switch or wires short out it will be stuck on. So design B seems like the best choice.

> Is it possible to look at the kill switch input as a...
Forum: Engine Conversions
11-24-2012, 12:42 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

B looks like the switch lines are pulled low. I think it will be better to pull them high, and that's how it's done right now so there's less change.
Forum: Engine Conversions
11-24-2012, 02:52 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Rob and I have been talking about how best to do the switches. I'd like for the kill switch to work (kill the engine) both if the switch comes loose OR if the wires short out. If anyone knows a...
Forum: Engine Conversions
11-21-2012, 02:36 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

> I have a way that works to kill the signal to the SCR by opening the trigger connection for a positive kill of the spark output.

That would be great! The TX/RX pins have only those two...
Forum: Engine Conversions
11-20-2012, 12:40 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Dang forum lost my post...

That sounds good. While you're at it... the 1840 can put serial on pins 2/3 or 6/7. To have serial and table/kill switches you should pin out 2, 3, 6, and 7. For...
Forum: Engine Conversions
11-19-2012, 08:18 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

It's been pointed out to me several times that the kill switch feature needs to be better. The kill switch should kill the engine if it becomes disconnected.

The reason I implemented it the...
Forum: Engine Conversions
11-17-2012, 12:41 AM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

That's strange... I tried adding that Cloudflare thing since it was free and my host was pushing it. It's supposed to make things faster and MORE reliable! Guess it's just a bunch of crap.

...
Forum: Engine Conversions
11-16-2012, 11:04 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

> Currently the server seems to be down tho.

http://www.electrofunnel.com/CDI-2012/CDI-2012_v1.0.zip

Seems to work for me. Maybe it's just having intermittent problems, or only certain...
Forum: Engine Conversions
11-16-2012, 07:15 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

Here's a video of v1.0 running on a Homelite 25cc engine...
http://www.youtube.com/watch?v=_xVTrjYXT10
Forum: Engine Conversions
11-16-2012, 02:08 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

v1.0 Release
v1.0 is now up on the website.

Changes/New features...
-Added Nyemi's code to turn interrupts on and off in a smarter way. This may reduce false interrupts which could cause the...
Forum: Engine Conversions
10-26-2012, 10:19 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

He must have accidentally screwed something up somewhere, it's easy to do. The interrupt handling improvement is a good idea though. I'll have it incorporated tomorrow.

As far as I can tell...
Forum: Engine Conversions
10-26-2012, 03:11 PM
Replies: 1,123
Views: 240,286
Posted By jakestew

RE: CDI gr8flyer55

First off, welcome to the project! You'll find some very smart people here.

I might be able to help you with some advice, and you can look over my code. But right now we're using PICs. They...
Showing results 1 to 25 of 145
 
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